<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="https://unpkg.com/vue@2.7.16/dist/vue.js"></script>
</head>

<body>
    <div id="app">
        <h1 v-text="msg"></h1>
        <h1 v-html="msn"></h1>
        <h1 v-pre>{{msg}}</h1>
        <h1 v-once>{{msg}}</h1>
        <h1>{{m<=100?'及格':'不及格'}}< /h1>
    </div>
    <script>
        var vm = new Vue({
            el: '#app',
            data: function () {
                return {
                    msg: 'hollo',
                    msn: `<img src="https://dcdn.it120.cc/2022/02/04/fa78ff5e-553f-40f2-8c78-b7ab8ed8bd39.png">`,
                    m: 100
                }
            }
        })
    </script>
</body>

</html>